Fixed mortgage rates can move even when the Bank of England has not changed Bank Rate. That can feel contradictory, but the two are linked rather than identical — and the difference matters if you are buying, remortgaging or waiting for a deal to improve.
Bank Rate is currently 3.75% after the Monetary Policy Committee voted on 17 September 2026 to leave it unchanged. Yet mortgage pricing has continued to move: trade reporting on 1 October said Barclays would increase fixed rates across 62 products from 2 October, its second fixed-rate increase that week.
Why can fixed rates change before Bank Rate does?
The Bank of England explains that Bank Rate influences borrowing costs, but it is not the only factor. New fixed-rate mortgages are also affected by longer-term funding costs and by market expectations for where Bank Rate may go in future.
That means lenders do not have to wait for the next Monetary Policy Committee meeting before repricing. If market funding costs or expectations change, a lender may alter a two- or five-year fixed deal even while the official Bank Rate remains exactly where it was.
Lender competition, appetite for new business and the mix of applications in a lender’s pipeline can also affect pricing. Those commercial decisions are lender-specific, so a rate move should not automatically be interpreted as a prediction that the Bank of England is about to raise or cut rates.
What does this mean if you already have an Agreement in Principle?
An Agreement in Principle is useful for understanding an approximate borrowing level, but it is not the same as a mortgage offer and should not be treated as a reserved mortgage rate. Barclays, for example, describes an AiP as an indication that it may be willing to lend a certain amount in principle; a full application still requires checks on income, credit history, financial circumstances and affordability.
If a particular mortgage product matters to your budget, check what stage is required for that lender to secure the product and what happens if the lender withdraws or reprices it. Do not assume that completing an affordability check or AiP freezes today’s rate.
Remortgaging? Timing still matters
For somebody approaching the end of a fixed deal, waiting for the next Bank Rate announcement is not automatically the best strategy. Fixed mortgage pricing may improve or worsen before then. It can therefore be sensible to review options early, understand any early repayment charge and compare the total cost of available deals rather than focusing on one headline rate.
Our remortgage guidance explains the wider points to consider. If you are buying rather than remortgaging, our main mortgage page covers the different routes available.
The practical takeaway
Bank Rate is important, but it is not a live price list for fixed mortgages. A better question is: what are lenders offering for your circumstances today, how secure is that product at your current application stage, and what would happen to your budget if the available rate changed?
If your mortgage is ending, you are making an offer on a property or you are unsure whether to wait, you can contact TLA Finance to review the available options in the context of your circumstances.
Sources checked: Bank of England Monetary Policy Summary, 17 September 2026; Bank of England interest-rate explainer; Bank of England explanation of fixed-rate mortgage funding; Barclays Agreement in Principle guidance; and The Intermediary, 1 October 2026.
Preparation note: This article was prepared with AI assistance and checked against the sources above and TLA Finance’s editorial standards before publication.
This article is for general information only and is not personalised mortgage advice. Mortgage rates, products and lender criteria can change at short notice. All applications are subject to lender affordability, credit assessment, valuation and underwriting. Your home may be repossessed if you do not keep up repayments on your mortgage.
